Managed Detection and Response (MDR)
By Travis DeForge, Abacus · Published October 29, 2026 · Updated October 29, 2026
Managed detection and response (MDR) is a service that combines continuous monitoring of an organization’s systems, human-led investigation of suspicious activity, and active containment of confirmed threats. Abacus includes managed detection and response as part of its CyberCore service, delivering continuous monitoring, threat detection, and incident response 24×7 for financial services firms and healthcare organizations globally.
What does managed detection and response include?
Managed detection and response includes four elements: telemetry collection from endpoints, identity systems, email, and cloud services; continuous monitoring of that telemetry; human investigation of alerts that automated tools escalate; and response actions that contain a confirmed threat, such as isolating a device or disabling an account.
Telemetry breadth determines what can be detected. An MDR service watching only endpoints will miss an attacker who signs in with valid stolen credentials and never drops a file. Coverage across identity, email, endpoint, and cloud is what catches the patterns that any single signal source misses.
Human investigation is the part that distinguishes MDR from a product. Automated detection produces a high volume of alerts, most of which are benign. Analysts triage them, assemble related signals into a single narrative, and decide whether an event is an incident.
Response authority is the element buyers most often leave undefined. Some providers notify and wait. Others are authorized to isolate a host or suspend an account immediately. The difference is measured in hours during a ransomware event, and it belongs in the contract rather than in a conversation.
Abacus includes managed detection and response as part of its CyberCore service, alongside endpoint protection, identity and access controls, and email security.
Through our partner Blackpoint, Abacus provides continuous 24x7x365 monitoring and response coverage. Threats detected outside standard business hours are investigated by their SOC and escalated through the appropriate Abacus processes, utilizing a structured on-call workflow and our enterprise service desk. To enable a rapid response to active threats, Blackpoint is authorized to take containment actions when a confirmed compromise is identified. Depending on the nature of the incident, this may include isolating an endpoint from the network to prevent further spread of malicious activity or disabling or blocking a user sign-in to prevent unauthorized access.
How is MDR different from SIEM, EDR, and antivirus?
MDR is a service; SIEM and EDR are technologies; antivirus is a control. Endpoint detection and response, or EDR, monitors endpoint behavior. A security information and event management, or SIEM, platform aggregates and correlates logs. Antivirus blocks known malicious files. MDR uses those tools and supplies the analysts who operate them around the clock alerts and context, allowing them to quickly address potential threats in real-time.
| Antivirus | EDR | SIEM | MDR | |
|---|---|---|---|---|
| What it is | Software control | Endpoint technology | Log platform | Managed service |
| Detects | Known malicious files | Suspicious endpoint behavior | Patterns across correlated log sources | Threats across endpoint, identity, email, and cloud |
| Who operates it | Runs automatically | Your team | Your team | The provider’s analysts |
| Coverage hours | Continuous, automated only | Business hours in most organizations | Business hours in most organizations | 24×7 with human review |
| Investigates alerts | No | No, it generates them | No, it correlates them | Yes |
| Takes containment action | Blocks or quarantines files | Only if someone acts on it | No | Yes, where authorized |
| Typical buyer | Every organization | Organizations with security staff | Organizations with a security team | Organizations without 24×7 staffing |
The categories are complementary rather than competing. MDR services are delivered using EDR and log platforms as the underlying tooling; the service layer is the analysts, the process, and the response commitment.
Why do financial services and healthcare organizations need MDR?
Financial services and healthcare organizations need MDR because both hold high-value data and neither can typically staff continuous internal cybersecurity experts, 24×7, ready to address suspicious activity within minutes. Attacks do not observe business hours, and an attacker who gains access on a Friday evening has the weekend to work if no one is looking at an alert queue.
Detection time is the measurable gap. IBM’s Cost of a Data Breach Report 2026 found the mean time to identify and contain a breach reached 247 days, up from 241 the prior year, reversing five years of improvement.
For healthcare organizations, the exposure is both financial and clinical. In the same report from IBM, the average healthcare breach cost is $6.64 million, the highest of any industry for the thirteenth consecutive year. In addition to the financial cost, ransomware against clinical systems disrupts scheduling, documentation, and imaging alongside the data loss. Verizon’s 2026 Data Breach Investigations Report found that system intrusion, miscellaneous errors, and social engineering accounted for 81% of healthcare breaches.
For financial services firms, the exposure is financial and regulatory. The IBM Cost of a Data Breach Report 2026 put the average financial services breach cost at $6.29 million, up 13% year over year. The SEC’s amended Regulation S-P requires covered firms to notify affected individuals as soon as practicable and no later than 30 days. This timeline can be affected by a firm’s ability to detect and identify the extent of an incident quickly enough to make that determination.
How much does managed detection and response cost?
Managed detection and response is usually priced per user or per endpoint per month, and the price depends on telemetry sources covered, response authority, log retention period, and whether incident response hours are included or billed separately. Those four variables move the number more than organization size does.
Four questions clarify what a quoted price actually covers:
Which telemetry sources are included? Endpoint only, or endpoint plus identity, email, and cloud?
How long are logs retained? Retention determines whether an incident can be reconstructed months later, which regulatory notification often requires.
Is incident response included or billed separately? Many agreements include detection and bill response by the hour.
What is the response authority? Notification only, or authorized containment?
The cost comparison that matters is against building the same capability internally. Staffing continuous detection requires enough analysts to cover nights, weekends, and holidays, which is why smaller organizations generally partner with an expert provider for the coverage rather than build it in-house.
How should you evaluate an MDR provider?
Evaluate four things: what the provider monitors, what it is permitted to do when it finds something, how quickly it commits to acting, and what independent evidence exists that the process works. Sector experience matters too, because notification requirements differ between different industries, especially for regulated firms like financial services or healthcare.
Five questions to ask an MDR provider before signing:
What telemetry do you ingest, and what is out of scope? Gaps in identity or email coverage are the common blind spots.
What are your committed triage and escalation times, in writing? Blackpoint provides a service level objective (SLO) rather than a service level agreement (SLA), so ask any provider for average response times rather than a marketing claim.
What actions can you take without calling us first? Define containment authority in the agreement.
How do you handle our regulatory clocks? In healthcare, a business associate must notify the covered entity of a breach within 60 days. For financial services firms, Regulation S-P requires individual notification no later than 30 days.
What independent validation do you hold? Ask for a current SOC 2 Type II report and check its scope and review period.
About Abacus
Abacus is a managed IT and cybersecurity provider serving financial services firms and healthcare organizations globally since 2004, with 24×7 monitoring and help desk coverage. With in-house incident response specialists, a cyber R&D team, and a deep bench of GRC experts, Abacus supports more than 1,200 clients and 100,000 users globally, holding SOC 2 Type II attestation and CREST accreditation, with infrastructure and processes designed to support HIPAA and HITRUST compliance requirements.
Frequently asked questions
No. MDR creates a 24×7 security monitoring function, not general IT operations. An internal IT team keeps ownership of systems, users, vendors, and business decisions, and works with the MDR provider during an incident. Co-managed arrangements are common, where the internal team handles daily operations and the provider supplies continuous detection, specialist investigation, and escalation depth the internal team cannot staff.
Neither HIPAA nor the SEC requires MDR by name. The HIPAA Security Rule requires security incident procedures and audit controls at 45 CFR 164.308(a)(6) and 164.312(b), and the SEC’s amended Reg S-P requires a written incident response program and individual notification no later than 30 days. MDR is one way to satisfy the detection and response capability those requirements assume, not a named mandate.
MDR is an operational service that detects and contains threats. A virtual CISO, or vCISO, is an advisory role that sets security strategy, owns the risk program, prepares for audits, and reports to leadership. The two are complementary: a vCISO decides what the program should cover and what risks to accept, and MDR carries out the monitoring and response. Abacus offers both.
MDR can be deployed to managed endpoints in a matter of minutes through mature automations; connectors to key log sources such as cloud services, networking equipment, and identity then follow within hours. This ensures that enhanced security monitoring and coverage is available rapidly while custom detection tuning, establishing client-specific policies, and creating additional automation rules can occur over several weeks to progress toward an ideal state.
MDR reduces the time between initial access by a threat actor and the start of containment, which is the window in which the impact of ransomware and data exfiltration is limited. It does not replace preventive controls. Additional layers of security — multi-factor authentication, patching, email filtering, least-privilege access, and immutable backups — remain necessary.
Modern cyberattacks can spread in minutes. Authorizing immediate containment actions helps reduce the risk of ransomware, account compromise, data theft, and lateral movement within your environment. These actions are intended to protect your environment during time-sensitive security incidents, particularly where delaying response could increase business risk.
Next step
Schedule a cybersecurity assessment with Abacus. The session reviews the telemetry you have today, where detection coverage gaps sit, and what containment authority your current arrangement actually grants.
